Author Question: The formula for calcium sulfate, CaSO4, represents a compound composed of A) two atoms of ... (Read 85 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
The formula for calcium sulfate, CaSO4, represents a compound composed of
 
  A) two atoms of calcium, four atoms of sulfur, and four atoms of oxygen.
  B) one atom of calcium, four atoms of sulfur, and four atoms of oxygen.
  C) one atom of calcium, one atom of sulfur, and four atoms of oxygen.
  D) one atom of calcium and four atoms of sulfate.
  E) one atom of calcium and one atom of sulfate.

Question 2

When an amine behaves as a base it ________ a hydrogen ion to form a(an) ________ ion.
 
  A) loses; hydronium
  B) loses; ammonium
  C) loses; hydroxide
  D) gains; ammonium
  E) gains; hydronium



ladyjames123

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

For a complete list of videos, visit our video library